Effects of flow and heat transfer around a hand-shaped former

Loksupapaiboon, Kittipos; Suvanjumrat, Chakrit

doi:10.1080/19942060.2022.2102079

Cited by 7 publications

(4 citation statements)

References 32 publications

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“…16 The air volume at the contact patch area with different inflation pressure and vertical loads air volume function correlated with the increasing vertical load. To model this relationship, the Cowper-Symonds model, as previously proposed in works [16][17][18][19][20], was employed. Consequently, the air volume function is formulated with two variables, namely inflation pressure and vertical load, represented by Eq.…”

Section: Air Volume Analysismentioning

confidence: 99%

Pavement-Tire Contact Patch Effects on Air Volume Using Finite Element Method

Saisaengtham

2024

GEOMATE

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The investigation into the noise generated by automotive tires delves into various mechanisms, such as tire vibration, adhesion, and the notably significant air-pumping mechanism. This particular mechanism stems from the rapid compression and expulsion of air within the tire-pavement contact patch, a result of the deformation of the tire tread. The study employs the finite element method to scrutinize tire deformation and quantify the air volume at the contact patch, forming the primary objective of the research. To benchmark the composite pneumatic tire model, vertical stiffness and footprint tests are conducted on the pneumatic tire. The validation of the automotive tire model reveals an average error of 6.47% for vertical displacement and 15.89% for footprint area. Additionally, variations in vertical load and inflation pressure are examined to observe their impact on air volume. The study proposes a mathematical model illustrating the relationship between air volume, vertical load, and inflation pressure. This mathematical model is deemed valuable and holds potential applications for reducing airpumping noise in future endeavors.

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Section: Air Volume Analysismentioning

confidence: 99%

Pavement-Tire Contact Patch Effects on Air Volume Using Finite Element Method

Saisaengtham

2024

GEOMATE

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“…The turbulent flow inside the baghouse filter is governed by the Reynolds-averaged Navier-Stokes (RANS) equations, which consist of continuity and momentum equations [11,12]. In Cartesian coordinates, these equations can be expressed as follows: The randomness of fluid flow introduces a Reynolds stress term in the RANS equations.…”

Section: Reynolds Averaged Navier-stokes Modelmentioning

confidence: 99%

Development of a Baghouse Filter CFD Model for Efficient Particulate Removal in Air Filtration Systems

Punyaponchai

2024

GEOMATE

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Air pollution poses a serious challenge for our capital city, and one crucial line of defense is effective dust control. Employing computational fluid dynamics (CFD), we designed a dust collector aimed at efficiently tackling particles smaller than 10 micrometers, a critical factor in combating air pollution. OpenFOAM, an open-source CFD software, was instrumental in this design process. Notably, our dust collector is equipped with bag filters capable of filtering PM 2.5. The application of the k-ε turbulence model governed the flow through the baghouse in our CFD model, while the bag filter was treated as a porous medium following Darcy's law. To validate our approach, we conducted an airflow experiment through a bag filter installed in the baghouse, determining the coefficient of Darcy's equation and benchmarking against CFD results. Impressively, our baghouse model exhibited an average error of less than 6.46%. This CFD-guided modeling not only minimizes trial and error in design but also provides manufacturers with insights to optimize and innovate baghouses in the future.

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“…The vertical component of the hydroplaning force is equal to the ground force when the tire hydroplaning exits [2,3]. It is like the lift force acting on the airfoil angles against the airflow [15,16]. Therefore, the force acting on tires caused by the hydroplaning is written by the following equation.…”

Section: Models Of the Tire Hydroplaning Speedmentioning

confidence: 99%

Numerical Study of Dynamic Hydroplaning Effects on Motorcycle Tires

Meethum

Suvanjumrat

2023

Int. J. Automot. Mech. Eng.

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Hydroplaning is a hydrodynamic phenomenon and has crucial effects on motorcycle tires that roll on a wet road at high speed. It causes an accident that results in numerous injuries and deaths of motorcyclists. This accident happens to an overestimation of the dynamic tire performance. Therefore, this research aims to propose a mathematical model to predict the maximum hydroplaning speed of motorcycle tires. The motorcycle tire was experimentally performed the hydroplaning test by the developing machine. The fluid-structure interaction (FSI), in which a rolling tire interacted with fluid on the road, was modeled using finite element and finite volume methods. It compared against the experiment and was in good agreement. Therefore, motorcycle tire hydroplaning was studied by varying velocities, inflation pressures, and carrying loads. It was found that the hydroplaning speeds had a serious relationship only to the carrying loads. Therefore, the novel function of hydroplaning velocity was established in the carrying load form. It is simple to specify the maximum hydroplaning speed of motorcycle tires. In addition, it will be a good and novel guidance tool for motorcycle riding communities and motorcycle tire manufacturers to calculate hydroplaning resistance of their motorcycle tires.

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Effects of flow and heat transfer around a hand-shaped former

Cited by 7 publications

References 32 publications

Pavement-Tire Contact Patch Effects on Air Volume Using Finite Element Method

Pavement-Tire Contact Patch Effects on Air Volume Using Finite Element Method

Development of a Baghouse Filter CFD Model for Efficient Particulate Removal in Air Filtration Systems

Numerical Study of Dynamic Hydroplaning Effects on Motorcycle Tires

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